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Commitments and Contingencies (Tables)
 9 Months Ended
Sep. 30, 2021
Commitments and Contingencies Disclosure [Abstract]  
Schedule of contractual commitments to acquire aircraft
As of September 30, 2021, the Company had contractual commitments to acquire a total of 320 new aircraft for delivery through 2027 as follows:
Estimated Delivery Years
Aircraft Type20212022202320242025ThereafterTotal
Airbus A220-300(1)
— 3 9 16 12 11 51 
Airbus A320/321neo(2)
12 24 22 26 19 21 124 
Airbus A330-900neo1 8 4 — — — 13 
Airbus A350-900/1000
3 3 4 5 1 — 16 
Boeing 737-7/8/9 MAX
8 29 16 28 7 — 88 
Boeing 787-9/10
1 10 4 10 3 — 28 
Total
25 77 59 85 42 32 320 
(1) In addition to the Company’s commitments, as of September 30, 2021, the Company had options to acquire up to 24 Airbus A220 aircraft. If exercised, deliveries of these aircraft are scheduled to commence in 2026 and continue through 2028.
(2) The Company’s Airbus A320/321neo aircraft orders include 31 long-range variants and 29 extra long-range variants.
Schedule of contractual commitments for the acquisition of aircraft at an estimated aggregate purchase price
The Company had contractual commitments for the acquisition of 320 aircraft for delivery through 2027, calculated at an estimated aggregate purchase price (including adjustments for anticipated inflation) of approximately $21.2 billion at September 30, 2021, which are due as follows (in thousands):

Years ending December 31,
2021$1,960,449 
20225,896,528 
20234,345,644 
20245,291,881 
20252,232,608 
Thereafter 1,432,269 
Total
$21,159,379